As the IV degree (subdominant), a major chord can resolve to V or directly to I (plagal cadence).
Features
Character
Major, with a major 7th and #11
Characteristic interval
Major 7th (M7), Augmented 11th (#11)
Description
The major 7th preserves maj7 structure, while #11 forms a tritone with the root and avoids the close semitone clash that a perfect 11th creates with the 3rd.
Application
Lydian tonic
Modern jazz
Major pedal-point textures
Voicing & structure
Root position
v1D#(D#4)Bass
root
v2G(G4)M3from D#
v3A#(A#4)m3from G
v4D(D5)M3from A#
v5A(A5)P5from D
Harmony
Compatible scales
All chord tones are contained in these scales — use them for improvisation.